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For one, both male and female cycads are gymnosperms and bear cones (strobili), while palms are angiosperms and so flower and bear fruit. The mature foliage looks very similar between both groups, but the young emerging leaves of a cycad resemble a fiddlehead fern before they unfold and take their place in the rosette, while the leaves of palms ...
The Natal cycad is dioecious, having male and female cones on separate plants. The male cones are velvety and about 45 by 11 cm (18 by 4 in) in size. Pollen is produced from April to June. The two or three female cones are slightly woolly, yellowish-green and cylindrical, 55 by 25 cm (22 by 10 in) in size, the scales being covered with small knobs.
This listing contains taxa of plants in the division Cycadophyta, recorded from South Africa. Cycads / ˈ s aɪ k æ d z / are seed plants with a very long fossil history that were formerly more abundant and more diverse than they are today. They typically have a stout and woody trunk with a crown of large, hard and stiff, evergreen leaves.
Male and female sporophylls are spirally aggregated into determinate cones that grow along the axis. Female sporophylls are simple, appearing peltate, with a barren stipe and an expanded and thickened lamina with 2 (rarely 3 or more) sessile ovules inserted on the inner (axis facing) surface and directed inward.
The female cones are closed, the sporophylls 8–12 cm long, with deep red-brown tomentose down, and 6-8 ovules on an ovate lamina, with yellow to yellow-brown sarcotesta. Ovoid and flattened sclerotesta. The male cones are solitary and erect, spindle shaped and cylindrical 15-23 long and 4–6 cm broad, with light yellow tomentose down and an ...
This species is dioecious, meaning it has separate male and female plants. Male plants produce 1-4 erect, cylindrical-ovoid cones that are 25–65 cm long and 15–22 cm wide, light green in color. Female plants bear 1-2 ovoid cones that are 30–45 cm long and 20–25 cm wide.
This species has male and female cones that are red and shaped like ovoids, measuring 25-30 centimeters long and 5-6 centimeters wide. The female cones are of the same shape but have a diameter of 12-15 centimeters. Each cone is supported by a 2-3 centimeter long peduncle, and each plant can produce between one and four cones.
Encephalartos lehmannii is a low-growing palm-like cycad in the family Zamiaceae.It is commonly known as the Karoo cycad and is endemic to South Africa. [3] The species name lehmannii commemorates Prof J.G.C. Lehmann, a German botanist who studied the cycads and published a book on them in 1834. [3]